725 lines
28 KiB
Plaintext
725 lines
28 KiB
Plaintext
From: Digestifier <Linux-Development-Request@senator-bedfellow.mit.edu>
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To: Linux-Development@senator-bedfellow.mit.edu
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Reply-To: Linux-Development@senator-bedfellow.mit.edu
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Date: Sat, 3 Sep 94 19:13:15 EDT
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Subject: Linux-Development Digest #114
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Linux-Development Digest #114, Volume #2 Sat, 3 Sep 94 19:13:15 EDT
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Contents:
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Re: Acid (was: Simple acid test) (Richard L. Goerwitz)
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'keyboard error' - anyone else still get this? (Jon Thackray)
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Re: RECOMMENDATION on device driver book (Troy DeJongh)
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Re: IDE Hard Drives w/ over 1024 cylinders (David Fox)
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XFree & CDROM slow down transfer rate (Robert Stockmann)
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stdlib (or stddef) needs updating (Thomas E Zerucha)
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Re: s3 964 server ? (Dougal Campbell)
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Re: sb_dsp_operations undeclared 1.1.46 (Patrick Doyle)
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Re: 'keyboard error' - anyone else still get this? (Rob Janssen)
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Re: Linux console to SCO comp. prob (Rob Janssen)
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[HELP] NIGHTMARE CONFIGURING THE NETWORK WITH A 3C503/16 PLEASE HELP !! (Christophe Person)
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Re: Ethernet bug (Larry Doolittle)
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Re: linux never swaps ? (J.H. Man)
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Re: sb_dsp_operations undeclared 1.1.46 (Hannu Savolainen)
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Re: IDE Performance enhancement (Patrick Doyle)
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Re: Acid (was: Simple acid test) (Joachim Schrod)
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Re: ext2fs floppy/82077 corruption with 1. (Marc Fraioli)
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Re: ext2fs corruption in 1.1.47-48 (Robert A. Tiller)
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----------------------------------------------------------------------------
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From: goer@quads.uchicago.edu (Richard L. Goerwitz)
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Subject: Re: Acid (was: Simple acid test)
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Reply-To: goer@midway.uchicago.edu
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Date: Fri, 2 Sep 1994 02:38:07 GMT
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>>> A simple test of true multilinguality is this: Can you mix languages
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>>> inside the application in question - languages with drastically different
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>>> scripts. And can you do it in arbitrary spots...
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>>
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>>MULE does this. Do your DOS applications support this *and* multiple
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>>input methods?
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>>
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>I must point out that those awful glorified terminal Macintoshes have
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>multiple language support built into the operating system.
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Right. So you don't need to graft on all of these ridiculous hacks to
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get nice multilingual software like Nisus. I'm constantly frustrated
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by Unix developers who tell me their product is fully internationalized,
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only to find that it's, at best, hacked for a language here or there.
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They nearly always fail my simple acid test, namely let me quote Shakes-
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peare and the Quran in the same paragraph or message. Typically what
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they mean when they say "internationalized" is "capable of being local-
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ized to support a language other than English."
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Being an American, I realize that it's hard for us to understand a
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multilingual environment like India, Canada, much of Russia, etc.; or
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a culture like Iran or Turkey, where Arabic has a certain standing as
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a religious language, though the populace speaks a non-Semitic vernacu-
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lar. What I don't understand is why foreign markets are putting up
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with the whole mess by permitting single-language localizations. If
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everyone just said, "Give me a fully internationalized OS that sup-
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ports wide characters and has a script manager built into the GUI,"
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then, well, a lot of goons would be out of work. But we'd be that
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much closer to Nirvana.
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Incidentally, what is this Mule? Is this a truly internationalized
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product, or a hack to get the OS to work with some specific non-western
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language like Japanese?
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--
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-Richard L. Goerwitz goer%midway@uchicago.bitnet
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goer@midway.uchicago.edu rutgers!oddjob!ellis!goer
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------------------------------
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From: jrmt@froggy.demon.co.uk (Jon Thackray)
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Subject: 'keyboard error' - anyone else still get this?
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Date: 2 Sep 1994 12:16:59 +0100
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I'm not sure why, but I keep getting 'keyboard errors' reported
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by the kernel, (even with 1.1.49), and have done since about 1.0.
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Are other people getting these, or is it just my keyboard? I haven't
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changed anything, except putting shift-3 to 'sterling', and I've got
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a UK keyboard (# next to return, " on shift-2). It only seems to happen
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about 2 or 3 times a day, perhaps when I press an unusual combination.
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Also, has anyone else got 'selection' to work after switching consoles
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from X (in this case, XF86_S3). Mine doesn't :-( New version needed?
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Do I have to shut down the X server to get my mouse back?
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Thanks,
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Jon.
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--
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// Jon Thackray. +44 (0)1494 721234 ><>
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------------------------------
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From: troyd@digibd.digibd.com (Troy DeJongh)
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Subject: Re: RECOMMENDATION on device driver book
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Date: Fri, 2 Sep 1994 14:42:13 GMT
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gt0676a@prism.gatech.edu (Garner) writes:
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>I'm looking for recommendations on a book on device drivers. I have seen
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>about 3 or 4 different ones and am not sure which one to get. I need to
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>write a printer driver for an "intelligent" printer. By that I mean I can
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>send a status request to the printer and get a response back. I would
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>also prefer a book with lots of code examples.
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>Thanks.
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>--
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>_______________ ________________________
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>Garner Halloran gt0676a@prism.gatech.edu
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>"We demand guaranteed rigidly defined areas of doubt and uncertainty."
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> - Vroomfondel, from _The Original Hitchhiker Radio Scripts_
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I have a few opinions:
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DO NOT get the device driver book called, "Writing UNIX Device Drivers in C"
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by Tondo and Adams. I felt they took a lot of short cuts in explaining things
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and most of the text is a group of appendices (of templates for drivers).
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I would recommend--even though it is a SCO UNIX based book--"Writing Device
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Drivers for SCO UNIX", 1993, Addison-Wesley, by Peter Kettle and Steve Statler.
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(ISBN 0-201-54425-3). I paid $37.50 for mine. Now I know you may not
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be writing drivers for SCO, but the book offers a lot of information that
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could be applied to most variants of System V. They have lots of complete
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drivers in the book and complete chapters on interrupts, STREAMS, etc.
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If you are looking to write Linux device drivers, the source code and the
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kernel hackers guide would be a start.
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Hope this helps.
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Regards,
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--
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Troy De Jongh Digiboard (troyd@digibd.com)
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------------------------------
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From: fox@graphics.cs.nyu.edu (David Fox)
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Subject: Re: IDE Hard Drives w/ over 1024 cylinders
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Date: 01 Sep 1994 22:05:09 GMT
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In article <344q4b$p9d@news.iastate.edu> chris@helser54.res.iastate.edu (Chris Wong) writes:
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] Anyone has any idea why Slackware gives me that message? Is it an error
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] message?
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If it makes you feel any better, I saw the same problem today.
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--
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David Fox xoF divaD
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NYU Media Research Lab baL hcraeseR aideM UYN
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------------------------------
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From: stock@dutsh7.tudelft.nl (Robert Stockmann)
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Subject: XFree & CDROM slow down transfer rate
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Date: Sat, 3 Sep 1994 01:18:05 GMT
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Hello,
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When running XFree and using a cdrom device I notice
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that the transfer rate of my scsi disk slows down.
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When not running XFree no decrease in transferrate can be observed.
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If however XFree (openwin) is started the transfer rate is slowed down.
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normally I get 5.6 Mbyte/sec but under X11 when /dev/sr0 is accessed
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or has been accessed the transfer rate goes down to 500 to 700 kbyte/sec..
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Is this normal? Is there a fix? (Hardware or Software?)
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my system:
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HP 486 EISA 25 MHz
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12 Mb RAM, cache on 486 chip, memory burstmode is accessed
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by external chip on moherboard (HP design)
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Adaptec 1740 SCSI-II controller (enhanced mode)
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FUJITSU Fast SCSI-II disk Model: M2624F-512 Rev: 0405
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TOSHIBA Fast SCSI-II cdrom Model: CD-ROM XM-3401TA Rev: 0283 (external)
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ESDI controller with Micropolis 150 Mb ESDI disk
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ATI Graphics Ultra PRO EISA (2Mb VRAM)
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My OS:
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Slackware 2.0 PRO. (kernel 1.0.9 Xfree 2.1.1 )
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Robert Stockmann
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stock@dutsh7.tudelft.nl
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------------------------------
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From: zerucha@shell.portal.com (Thomas E Zerucha)
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Subject: stdlib (or stddef) needs updating
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Date: 2 Sep 1994 00:42:30 GMT
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stdlib.h uses the typedef wchar_t, and indicates it is defined in stddef.h
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(by defining __need_wchar_t). Unfortunately, somewhere when the kernel
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was being update, these were removed (or were never there, and no one updated
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stdlib). I saw this when trying to compile tclmidi, since g++ is very picky,
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even about things it doesn't use.
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---
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zerucha@shell.portal.com - main email address
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------------------------------
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From: dougal@vespucci.iquest.com (Dougal Campbell)
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Subject: Re: s3 964 server ?
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Date: 3 Sep 1994 11:23:53 -0500
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In article <cschwarz.2.2E6249FA@nyx.cs.du.edu>, Chris Schwarzfischer said something like:
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> hi there
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> we got a pentium 90MHz ..... (fine).
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> we got a S3 card with 964 chipset (PCI) (fast but do not work with the S3
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> X-Server)
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> I<>m using the newest server form the LST distribution.
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> where can i find the newest server?
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> robert regensburg germany
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The XFree86 team announced that vesion 3.1 would be out in mid-September,
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and it will have support for this chipset.
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--
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Dougal Campbell | Check out the interQuest home page:
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System Administrator | http://www.iquest.com/
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dougal@iquest.com | interQuest: "We can hook you up!"
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------------------------------
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From: wdoyle@hilbert.coe.northeastern.edu (Patrick Doyle)
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Subject: Re: sb_dsp_operations undeclared 1.1.46
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Date: 3 Sep 1994 21:40:30 GMT
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In article <34a6me$oth@crl5.crl.com> tkay@crl.com (Anthony W. Kay) writes:
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>Sam Gentile (owlmed@mv.mv.com) wrote:
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>: I am trying to build 1.1.46 and got the following problem:
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>: sb_dsp.c: In function 'sb_dsp_init':
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>: sb_dsp.c:815: 'sb_dsp_operations'undeclared
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>
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>Well, I'll give it a try.
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>
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>The C error that you are getting claiming that an identifier
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>(sb_dsp_operations) is being used without a definition (C doesn't
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>care for that kinda thing), which makes me thing that perhaps you
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>are missing an include file somewhere, or that some patch failed
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>miserably.
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>
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>First, where did you get the kernel source tree? Did you download a complete
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>source tree, or a set of patches? If you downloaded a set of patches,
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>did you apply them all in order, and were there any errors?
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No, the problem is with the distribution of the SoundBlaster code.
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I've had similar problems with 1.1.43 and 1.1.49 (I just jumped from
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one to the other). In the first case, I solved the problem by poking
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around enough of the SB code to strategically #ifdef out the offending
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code. In the second case, I enabled more options when configuring the
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sound card and the problem went away. (I figured it would from my
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perusal of the code in 1.1.43).
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The problem appears to be that, according to the configuration
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program, if you have a SoundBlaster16, you have the DSP that goes with
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it. Since I have an SB16 sans DSP, I thought it would be wise not to
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configure the kernel with DSP support, (I believe the *SPEECH* option
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specifies this), especially since the probe routine was esentially a
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NOP. When I upgraded to 1.1.49 and ran into the same problem, I
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decided to go ahead and configure the SPEECH (and MIDI, and possibly
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one or two other) options that I don't have the hardware to support.
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I figured it couldn't hurt since I haven't been using the sound
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capabilities anyway.
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I don't really know that much about the SB card set. It seems to me
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that CreativeLabs started out with SoundBlaster, an 8-bit card;
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designed an improved card, the SoundBlaster Pro, an 8-bit stereo card;
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designed another improved card, the SoundBlaster 16, a 16-bit card;
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and I've gotten lost with the proliferation of cards and features
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since then. There's probably a FAQ somewhere that I haven't had time
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to look for.
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Anyway, You could probably solve your problem by configuring full
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sound support, or by selectively hacking the sources.
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BTW, I would like to formally request that the configuration
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parameters for the sound support be integrated in the rest of the
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kernel configuration parameters in time for the next code freeze. It
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can really be annoying to try to remember what parameters I chose the
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last time I configured the kernel and there's no reason this fancy
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machine in front of me couldn't remember them for me automagically.
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Regards...
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-patrick
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------------------------------
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From: rob@pe1chl.ampr.org (Rob Janssen)
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Subject: Re: 'keyboard error' - anyone else still get this?
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Reply-To: pe1chl@rabo.nl
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Date: Sat, 3 Sep 1994 12:17:44 GMT
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In <3471jb$9lr@froggy.demon.co.uk> jrmt@froggy.demon.co.uk (Jon Thackray) writes:
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>I'm not sure why, but I keep getting 'keyboard errors' reported
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>by the kernel, (even with 1.1.49), and have done since about 1.0.
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>Are other people getting these, or is it just my keyboard? I haven't
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>changed anything, except putting shift-3 to 'sterling', and I've got
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>a UK keyboard (# next to return, " on shift-2). It only seems to happen
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>about 2 or 3 times a day, perhaps when I press an unusual combination.
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>Also, has anyone else got 'selection' to work after switching consoles
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>from X (in this case, XF86_S3). Mine doesn't :-( New version needed?
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>Do I have to shut down the X server to get my mouse back?
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This normally works OK for serial mice, and often there are problems
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with PS/2 mice.
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Rob
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--
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=========================================================================
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| Rob Janssen | AMPRnet: rob@pe1chl.ampr.org |
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| e-mail: pe1chl@rabo.nl | AX.25 BBS: PE1CHL@PI8UTR.#UTR.NLD.EU |
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=========================================================================
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------------------------------
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From: rob@pe1chl.ampr.org (Rob Janssen)
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Subject: Re: Linux console to SCO comp. prob
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Reply-To: pe1chl@rabo.nl
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Date: Sat, 3 Sep 1994 12:22:30 GMT
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In <3471jq$4f@obelix.cica.es> jon@obelix.cica.es (Jonathan Noel Tombs) writes:
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>In article <DMW.94Aug29102738@prism1.prism1.com>,
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>> No, there are real problem when it comes to Linux's keyboard handling.
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>>What I (and many other people) want is to be able to replace SCO with Linux
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>>and not have the other people notice. Sure, I could use WPTERM to set up an
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>>entry for Linux's console, I've done it many times for other terminals. But
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>>I don't *want* a sperate entry for Linux. And I *can't* make an exact duplicate
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>>for the SCO keyboard layout because Linux does not support enough key
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>>combinations re: function keys. That is, SCO supports FKEY, S-FKEY, C-FKEY,
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>>and C-S-FKEY. I want (and NEED) Linux to do this as well. Also, the keys that
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>>Linux sends out are far too long for what they need to do and still be
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>>unique. This causes problems with our in-house software because we use a
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>>tree-based keyboard table to speed up recognition and we have a fixed
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>>maximum size per fkey string we can handle. Yes, we could increase it, but why?
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>what is the problem with the linux keymaping. I can generate 16 different
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>characters/sequences per key as far as I am aware. linux seems to
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>supports all shift/control/alt posabilities.
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>What is it that SCO can do that linux not? Or is it just you haven't
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>bothered using loadkeys and the default map defines some sequences as
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>the same.
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The problem of the original poster was that his keyboard recognition software
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is broken and he wants to blame someone else for it.
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I have written a tree-based keyboard table as well, years ago, and I
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never have seen problems like that. It also works with Linux. Probably
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his code is not using a tree datastructure where it should.
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Rob
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--
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=========================================================================
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| Rob Janssen | AMPRnet: rob@pe1chl.ampr.org |
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| e-mail: pe1chl@rabo.nl | AX.25 BBS: PE1CHL@PI8UTR.#UTR.NLD.EU |
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=========================================================================
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------------------------------
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From: chrisp@boole.neusc.bcm.tmc.edu (Christophe Person)
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Crossposted-To: comp.os.linux.admin,comp.os.linux.help
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Subject: [HELP] NIGHTMARE CONFIGURING THE NETWORK WITH A 3C503/16 PLEASE HELP !!
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Date: 3 Sep 1994 14:08:35 -0500
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Hi,
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I am still stuck since a week with a network problem and I pull my hairs
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off (and eat my nails also). Please help !!!!!!!!
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I was running slackware 1.2 without problem for a while and upgraded
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my system WITH THE ORIGINAL/FULL DISTRIBUTION from sunsite.unc.edu. Since, I
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can't anymore boot my new kernel with my 3C503 card.
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I get this #$&#*$&! SIOCADDRT Invalid Argument ass soon as I try to
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access it.
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o I have tried to install NetKit A and B and noticed that ifconfig
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returns something like
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IRQ=0 and BaseAddr=0.
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Also HWaddr=00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
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o What is REALLY wired is that the kernel boot and probe the card
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correctely
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3C503 probe at 0x2e0: not found
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3C503 probe at 0x310: 02 60 8c 8d cb 6e
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eth0: 3C503 with shared memory at 0xdc000-0xddfff
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What does it mean ??? I am not a linux newbie and installed
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successfully many systems (SLS and Slackware) without any kind of problem.
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I don't believe there is an IRQ conflict somewhere (I have check the
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BIOS also) and IT WAS WORKING BEFORE.
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I have:
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o make config
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with correct setup
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o edit ./drivers/net/CONFIG
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o make zImage.
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Note that it does THE SAME THING if I replace my 3c503 with a 3c509.
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ARGGHHHH !!!! Please help me so I will not return to Slackware 1.2.
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Christophe Person
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http://dirac.bcm.tmc.edu/people/chrisp.html
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chrisp@dirac.bcm.tmc.edu
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------------------------------
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From: doolitt@recycle.cebaf.gov (Larry Doolittle)
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Subject: Re: Ethernet bug
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Reply-To: doolittle@cebaf.gov
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Date: Fri, 2 Sep 1994 02:47:34 GMT
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The following discussion applies completely to my machine, too.
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I am still on 1.0.8, and was hoping that when I upgraded to 1.1.zillion :-)
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the problem would disappear. I have a 386DX/25 with a 3c503. I suspect
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it's CPU speed sensitive, because a friend with a 486 but an identical
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ethernet card has no problem. Another friend with a 386DX/33 is about
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the same as me. The problem comes and goes, my typical uptime is 1 month
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between reboots, and I have a ping -i40 <big-ultrix-mainframe> to keep
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the problem under control (I have the ping started from rc.inet2).
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|
||
Rob Janssen (rob@pe1chl.ampr.org) wrote:
|
||
: In <344dab$rr7@solaris.cc.vt.edu> balister@maddog.async.vt.edu () writes:
|
||
|
||
: >Darin Johnson (djohnson@elvis.ucsd.edu) wrote:
|
||
: >: I've got 1.1.48, using a 3c509 ethernet card. Immediately after
|
||
: >: rebooting, it won't respond to pings (or anything) from the
|
||
: >: outside world. But as soon as I use the network locally (ie,
|
||
: >: ping outwards), I get the following error message and things start
|
||
: >: to work normally:
|
||
|
||
: >: eth0: Missed interrupt, status then 2011 now 2011 Tx 00 Rx 383c.
|
||
|
||
: >: It's like it just needs to be kicked once to start working.
|
||
: >: Other info that might help is that when I boot up under dos
|
||
: >: it gets assigned a different ip address than under linux.
|
||
|
||
: >I've had the same problem for a while. I put a ping in a startup file.
|
||
|
||
: My system at work (which has a 3c509) shows the same "Missed interrupt"
|
||
: error on boot, but only when the system is rebooted without powerdown.
|
||
: (CTRL-ALT-DEL reboot, e.g. after compiling a new kernel)
|
||
: When I have just switched on the system it never appears. Unfortunately
|
||
: there is no RESET button on this box, so I can't tell what happens when
|
||
: booting that way :-(
|
||
|
||
: (this system also mounts some NFS filesystems in the startup sequence,
|
||
: so there are no network reachability problems)
|
||
|
||
: Rob
|
||
: --
|
||
: -------------------------------------------------------------------------
|
||
: | Rob Janssen | AMPRnet: rob@pe1chl.ampr.org |
|
||
: | e-mail: pe1chl@rabo.nl | AX.25 BBS: PE1CHL@PI8UTR.#UTR.NLD.EU |
|
||
: -------------------------------------------------------------------------
|
||
|
||
------------------------------
|
||
|
||
From: jman@home.org (J.H. Man)
|
||
Subject: Re: linux never swaps ?
|
||
Date: 2 Sep 1994 04:24:45 +0100
|
||
Reply-To: jman@home.org
|
||
|
||
Tim Bass (Network Systems Engineer) <bass@cais2.cais.com> wrote:
|
||
|
||
> First my P5 had 16 MB of RAM and not matter what kind of serious
|
||
> process load I could dream of, it never swapped.
|
||
|
||
Huh ? I've got 16M here, and just by compiling the kernel, about 500K
|
||
gets swapped out - the lpd and update daemons.
|
||
|
||
- John, jman@home.org
|
||
|
||
------------------------------
|
||
|
||
From: hannu@voxware.pp.fi (Hannu Savolainen)
|
||
Subject: Re: sb_dsp_operations undeclared 1.1.46
|
||
Date: Sat, 3 Sep 1994 19:15:02 GMT
|
||
|
||
owlmed@mv.mv.com (Sam Gentile) writes:
|
||
|
||
>I am trying to build 1.1.46 and got the following problem:
|
||
>sb_dsp.c: In function 'sb_dsp_init':
|
||
>sb_dsp.c:815: 'sb_dsp_operations'undeclared
|
||
|
||
This happens when the SB driver is enabled but the digitized voice
|
||
support is disabled. Just run make config again and enable
|
||
"digitized voice". A faster way is to edit linux/drivers/sound/local.h and
|
||
remove the line containing #define EXCLUDE_AUDIO.
|
||
|
||
Hannu
|
||
--
|
||
=============================
|
||
Hannu Savolainen
|
||
hannu@voxware.pp.fi
|
||
"Don't use Windows since there is a door!"
|
||
|
||
------------------------------
|
||
|
||
From: wdoyle@hilbert.coe.northeastern.edu (Patrick Doyle)
|
||
Subject: Re: IDE Performance enhancement
|
||
Date: 3 Sep 1994 21:45:22 GMT
|
||
|
||
In article <CvKMs9.Fy8@eecs.nwu.edu> jseng@news.eecs.nwu.edu (John S. Seng) writes:
|
||
>davor@emard.--- wrote:
|
||
>: Similar: Conner 240M -- is deperformance of -5%
|
||
>: disk speed when multiple mode (16) enabled. Lower
|
||
>: values (2) slow it down less, cca -1%.
|
||
>:
|
||
>How do you compile in the enhancements anyways?
|
||
>
|
||
They are included in later revision kernels (I'm not too sure when
|
||
they first appeared). They have to be specifically enabled, however,
|
||
using the "hdparm" program.
|
||
|
||
|
||
|
||
|
||
------------------------------
|
||
|
||
From: schrod@iti.informatik.th-darmstadt.de (Joachim Schrod)
|
||
Subject: Re: Acid (was: Simple acid test)
|
||
Date: 2 Sep 1994 10:46:15 GMT
|
||
|
||
In article <1994Sep2.023807.24567@midway.uchicago.edu>, goer@quads.uchicago.edu (Richard L. Goerwitz) writes:
|
||
> >>> A simple test of true multilinguality is this: Can you mix languages
|
||
> >>> inside the application in question - languages with drastically different
|
||
> >>> scripts. And can you do it in arbitrary spots...
|
||
> >>
|
||
> >>MULE does this. Do your DOS applications support this *and* multiple
|
||
> >>input methods?
|
||
> >>
|
||
> >I must point out that those awful glorified terminal Macintoshes have
|
||
> >multiple language support built into the operating system.
|
||
>
|
||
> Right. So you don't need to graft on all of these ridiculous hacks to
|
||
> get nice multilingual software like Nisus. I'm constantly frustrated
|
||
> by Unix developers who tell me their product is fully internationalized,
|
||
> only to find that it's, at best, hacked for a language here or there.
|
||
> They nearly always fail my simple acid test, namely let me quote Shakes-
|
||
> peare and the Quran in the same paragraph or message. Typically what
|
||
> they mean when they say "internationalized" is "capable of being local-
|
||
> ized to support a language other than English."
|
||
|
||
Perhaps you should differantiate between multilingual (can work with
|
||
many languages/scripts at once) and internationalized (can work with
|
||
an arbitrary but fixed language/script at one given instantiation).
|
||
|
||
In our work this distinction has shown to be very proficient. And the
|
||
literatore on I18N actually often mean the latter thing.
|
||
|
||
Cheers,
|
||
Joachim
|
||
|
||
--
|
||
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
||
Joachim Schrod Email: schrod@iti.informatik.th-darmstadt.de
|
||
Computer Science Department
|
||
Technical University of Darmstadt, Germany
|
||
|
||
------------------------------
|
||
|
||
From: mjf@clark.net (Marc Fraioli)
|
||
Subject: Re: ext2fs floppy/82077 corruption with 1.
|
||
Date: 2 Sep 1994 17:10:10 GMT
|
||
Reply-To: mjf@clark.net
|
||
|
||
In article gak@clarknet.clark.net, niemidc@clark.net (login_menu) writes:
|
||
>In article 2gr@huxley.anu.edu.au, gpg109@huxley.anu.edu.au (Gary Paul Gortmaker) writes:
|
||
>>This is guaranteed to demonstrate the problem on 82077 based systems.
|
||
>>I have verified it on two systems with 82077 chips on cards from
|
||
>>different manufacturers. I know it did so on 47 and 48, as well as 1.1.49,
|
||
>>but can't vouch for how far it goes back. I sent this to the KERNEL
|
||
>>channel, but I think the mail-server ate it. :-(
|
||
>>
|
||
>>1) mke2fs a floppy
|
||
>>2) mount it and copy a big (~500k) file to it (or several files)
|
||
>>3) unmount it but _don't_ eject it
|
||
>>4) run "e2fsck -vrf /dev/fd0" --- it will come up clean (reading the cache)
|
||
>>5) eject it and immediately stick it back in (set disk change flag)
|
||
>>6) Repeat step 4 -- you will get most of the blocks in the above file(s)
|
||
>> being marked as "not in use".
|
||
>
|
||
The plot thickens. I'm running 1.1.49, but dmesg reports:
|
||
|
||
FDC 0 is a 8272A
|
||
|
||
on my system. Just on a lark, I tried the above steps, figuring I'd
|
||
have no trouble. I was wrong. When I get to step 4, e2fsck reports a
|
||
large number of inodes not used with links_count not null. It offers
|
||
the choice of repairing them, so I chose yes. I then do steps 5 and 6,
|
||
and everything comes out clean. I had inserted a step 2.5, where I did a
|
||
cmp on the file I copied to the floppy with the original, and it came
|
||
up clean. I have not had any trouble with tar, and I don't normally
|
||
use filesystems on floppies, so this is not something I would otherwise
|
||
have noticed.
|
||
|
||
Other info on my system: 486/33 ISA, AMI BIOS, el-cheapo IDE/floppy
|
||
controller, two IDE HDs (a Conner and a WDC), and a couple other
|
||
probably irrelevant cards plugged in (S3 video, SoundBlaster, Internal
|
||
modem w/ 16550A).
|
||
|
||
---
|
||
Marc Fraioli | "They couldn't hit an elephant at this dist- "
|
||
mjf@clark.net | - Last words of Union General John Sedgwick,
|
||
| Battle of Spotsylvania Court House, U.S. Civil War
|
||
|
||
|
||
|
||
------------------------------
|
||
|
||
From: rat@willie.ualr.edu (Robert A. Tiller)
|
||
Subject: Re: ext2fs corruption in 1.1.47-48
|
||
Date: 2 Sep 1994 15:16:15 GMT
|
||
|
||
Marino Ladavac (lan_lada@rcsw52) wrote:
|
||
: mlord@bnr.ca (Mark Lord) writes:
|
||
: : In article <shalafi.778344293@zetor.clinet.fi> shalafi@clinet.fi writes:
|
||
: : >mlord@bnr.ca (Mark Lord) writes:
|
||
: : >
|
||
: : >>In article <33vqh0$nrn@bigblue.oit.unc.edu> jem@bittyblue.oit.unc.edu writes:
|
||
: : >>>Hi,
|
||
: : >>>
|
||
: : >>>I've been having problems with files being corrupted under (at least) 1.1.47
|
||
: : >>>and 1.1.48 on an IBM/vp DX266 with 64Mb RAM and an Maxtor MXT-50 IDE disk
|
||
: : >>>with 16 sector multiple mode enabled. I would suspect the mult. mode but
|
||
: : >>>I ran it in the past with no corruption.
|
||
: : >>...
|
||
: :
|
||
: : >I've have the same problem. I have a 486DX2/66 and an Adaptec 1542CF
|
||
: : >with a Seagate disk.. As far as I know, I haven't turned a multiple
|
||
: : >mode on. (In fact, I'd like to know how to do that. Somebody mail me?)
|
||
: :
|
||
: : Ah. A SCSI system with similar symptoms. That makes it unlikely
|
||
: : to be IDE-multiplemode related, or for that matter, IDE or SCSI specific.
|
||
: : Thus, odds are improving that it is a filesystem problem.
|
||
: : (multiple-mode is for IDE *only*).
|
||
: :
|
||
: : >When a file is corrupted, it has perhaps 8, perhaps 10 (I never made
|
||
: : >a note about it) corrupted characters. They're placed so that EVERY
|
||
: : >OTHER character is corrupted with an uncorrupted character between.
|
||
: :
|
||
: : Mmm.. a potentially good clue, if you can reproduce it and then
|
||
: : post a real example, with the exact byte offset within the file
|
||
: : carefully noted.
|
||
: : --
|
||
: : mlord@bnr.ca Mark Lord BNR Ottawa,Canada 613-763-7482
|
||
|
||
: I have had the same problems while using teh 1542CF with 1.0, 1.0.9 and
|
||
: 1.1.11. Eventually I've tested the thing by directly writing to one
|
||
: of the partitions on the SCSI drive (50 MB of incrementing chars written,
|
||
: then read, and the offending char's printed.) Some of the bits (usually
|
||
: only one per byte) get lost (inverted.) It happens both on writing
|
||
: and reading. I suspected a problem with 1542CF (driver or the cable) but
|
||
: it may not be. I have had no problems (knock wood :) on the same machine
|
||
: while using IDE drives (1.0, 1.0.9, 1.1.11, 1.1.45.) I shall have to
|
||
: check the behavior when only the card supplies the SCSI termination power,
|
||
: and when the drive is passively terminated (the drive, Adaptec and the
|
||
: cable live very happily in another machine devoted to OS/2 and DOS.)
|
||
|
||
: /Alby
|
||
|
||
: --
|
||
: Proof by Intimidation:
|
||
: "I'm bigger, therefore I'm right."
|
||
|
||
I also have scsi corruption on a sony MO drive(128MB) and a buslogic
|
||
542B controller(IDE with multimode 64 is fine). The drive works under
|
||
dos. I've not tried to trouble shoot it very much.
|
||
|
||
Robert
|
||
|
||
Linux is happy!!!
|
||
|
||
------------------------------
|
||
|
||
|
||
** FOR YOUR REFERENCE **
|
||
|
||
The service address, to which questions about the list itself and requests
|
||
to be added to or deleted from it should be directed, is:
|
||
|
||
Internet: Linux-Development-Request@NEWS-DIGESTS.MIT.EDU
|
||
|
||
You can send mail to the entire list (and comp.os.linux.development) via:
|
||
|
||
Internet: Linux-Development@NEWS-DIGESTS.MIT.EDU
|
||
|
||
Linux may be obtained via one of these FTP sites:
|
||
nic.funet.fi pub/OS/Linux
|
||
tsx-11.mit.edu pub/linux
|
||
sunsite.unc.edu pub/Linux
|
||
|
||
End of Linux-Development Digest
|
||
******************************
|